---
title: "Free Hashtag Extractor for Captions and Posts"
description: "Paste captions and get every hashtag once, duplicates removed whatever their case, with a warning past Instagram’s 30-hashtag limit. Free, in your browser."
canonical_url: "https://postqueen.ai/tools/hashtag-extractor"
markdown_url: "https://postqueen.ai/tools/hashtag-extractor.md"
last_updated: "2026-09-25"
llms_txt: "https://postqueen.ai/llms.txt"
---

# Hashtag extractor for captions.

Paste a caption or a batch of posts and get every hashtag once, ready to copy, count and reuse.

Your caption or posts

Runs in your browser. Nothing you type is uploaded.

6 hashtags, 1 duplicate removed

- #baking
- #Sourdough
- #weekend
- #breadmaking
- #cardamom
- #homebaker

## Good to know

- Duplicates are removed whatever their case, and the first spelling is kept.
- Instagram allows at most 30 hashtags in one post.
- Letters from every language count, so #café and #東京 are found too.

When the post is ready

## Schedule it with PostQueen, or ask your agent.

PostQueen counts each network’s limit as you write, and publishes to 30+ networks at the time you pick.

[Start 7-day trial for $0](https://app.postqueen.ai/auth?utm_source=postqueen.ai&utm_medium=landing&utm_campaign=trial&utm_content=tool-ready) $0 due today. Cancel in one click.

## Hashtag extractor questions, answered.

Anything else? Write to [support@postqueen.ai](mailto:support@postqueen.ai) and a person answers.

### How many hashtags can I use on Instagram?

Up to 30 in one post. Posts with more are rejected, and PostQueen checks this before a post is scheduled.

### Do hashtags still matter?

They help people find posts on Instagram, TikTok, LinkedIn and Mastodon, where they are searchable and followable. A few specific ones work better than a long generic list.

### Is my text uploaded anywhere?

No. The tool runs in your browser and nothing you paste leaves the page.

## More free tools

### [Character counter](https://postqueen.ai/tools/character-counter)

Live counts against each network’s real limit.

### [Thread splitter](https://postqueen.ai/tools/thread-splitter)

Turn a long draft into numbered posts that fit.

### [Bold text generator](https://postqueen.ai/tools/bold-text-generator)

Bold, italic and monospace letters you can paste anywhere.

### [UTM link builder](https://postqueen.ai/tools/utm-link-builder)

Tag your links so you know which post brought the visit.

### Write it here, post it everywhere.

Hand the posting to your AI agent and get your time back.

[Start 7-day trial for $0](https://app.postqueen.ai/auth?utm_source=postqueen.ai&utm_medium=landing&utm_campaign=trial&utm_content=tool-band) $0 due today. Cancel in one click.